Pizza Burgers

1 pound ground beef
8 English muffins
1 (14 ounce) jar pizza sauce
8 ounces mozzarella cheese, shredded
1 (4 ounce) can mushrooms (optional)
Pepperoni, olives, sausage, onions

Brown ground beef. Open buns and place them on a cookie sheet, cut-side up. Spread pizza sauce on muffins and top with ground beef. Top with cheese. Add optional toppings if desired. Put into broiler until the cheese melts.

Yields 8 burgers.